PicaLoader

VowSoft Picaloader is a useful utility that helps you find, download and organize pictures you find on the web. Very popular with digital artists, designers, photographers, webmasters, journalists and other people who need to quickly and efficiently get pictures form the web in large volumes, PicaLoader supports multithreaded downloads of up to 50 threads, resumes broken downloads and is also HTTP-proxy supported to make downloading pictures on the web a breeze for users.
Other powerful downloading features include: an advanced HTML analyst engine which allows PicaLoader to follow and retrieve pictures from every link including Javascript, VBScript, Jsript links while at the same time protecting users against malicious online scripts.

From Vowsoft:

PicaLoader Virus and Malware Tests: For security reasons, you should also check out the PicaLoader virus and malware test that has been uploaded; additional PicaLoader screenshots may be available, too.

Alternatives

Internet UtilitiesA very comprehensive database of programs used to perform many tasks on the Internet. Also included are Internet browsers, Firefox addons and Anonymous Internet Browsing free software.

Freeware Internet UtilitiesIf you're looking for a free solution to PicaLoader, check out some of the freeware downloads available in the internet utility category. They contain no strings and are available at zero cost.